TOC Analyzer and Control System

Measuring TOC (Total Organic Carbon) continuously online is the perfect solution for monitoring contamination and discharge in water. The system measures the total organic carbon in liquid samples, by using the method of UV persulfate oxidation with subsequent carbon dioxide detection. This is achieved via non-dispersive infrared absorption (NDIR). The analyzer can measure TOC in liquid samples ranging from 0–5 ppm to 20,000 ppm, and conforms to EPA, DIN, CE, ASTM, and NAMUR regulations as well as meeting the requirements of ISO and EN directives.

Safe and Reliable Online TOC Measurements – Separate lines are used for stripping gas and carrier gas. There are two separate gas lines, each with its own compressor. One is intended for the stripping gas for the TIC (total inorganic carbon) and one for the carrier gas which is automatically monitored by a digital flow meter.
Integrated carrier gas – An internal air compressor produces the carrier gas for the oxidation and detection stages. The air is purified using an internal soda lime filter, which means that there is no need for external air treatment or a compressed air supply, as in traditional analyzers.
Autoclean – This function uses a dedicated peristaltic pump to clean the liquid lines of the analyzer, the sample line, and the external reservoir.

TOC Analyzer

Model: 3S

(UV persulfate oxidation)

Model: CA6-UV

(UV correlation technique)

TOC Analyzer

Description

The Model 3S utilizes the method of UV persulfate oxidation, detection of generated carbon dioxide using a Non Dispersive Infrared Detector (NDIR), which conforms to EPA, DIN, CE, ASTM, NAMUR regulations.

An alternative TOC analytical method is a UV correlation technique, and is incorporated in the Model CA6-UV Analyzer.

  • Digital-flow controller design for carrier gas
  • Valve free sample line
  • Air purifier integrated supplied by an internal compressor
  • Auto-cleaning system
  • Dual stream
  • Touchscreen interface
  • High stability IR detector
  • Dual compartment enclosure – separate liquids and electronics
  • Long-lasting calibration
  • Minimal maintenance
  • Rugged Design
  • Industrial wastewater
  • Drinking water
  • Industrial effluents
  • Effluent and influent monitoring
  • Boiler feed water
  • Condensate and cooling water
  • Surface water
  • Process water

TOC Analyzer

Model: ETX + UV254

TOC Analyzer

Description

The Model ETX Transmitter with the UV254 Sensor utilizes state of the art UV 254nm optical absorbance technology to measure organics in water.

Many dissolved organic substances have spectral characteristics capable of absorbing UV light at the wavelength of 254 nm. A UV source produces UV light radiation that passes through the optical path. The receiver analyzes the UV pulses at two different wave lengths, a measurement wavelength (254 nm) and a reference wavelength which is not influenced by the presence of organic compounds. This results in accurate, repeatable measurements which can be read as a scalable mA value.

Abbreviations:
TOC = Total Organic Carbon
COD = Chemical Oxygen Demand
BOD = Biological Oxygen Demand

  • On-line, real time equivalent measurements for TOC, COD, or BOD
  • Configuration for low or high measurement ranges for increased measurement accuracy
  • Low Range Configuration – up to 370 ppm (mg/L)
  • High Range Configuration – up to 1000 ppm (mg/L)
  • Single or dual channel controller versions available
  • Factory tested and calibrated for plug-and-play installation
  • 2 x mA outputs with 3 x set-point relay / alarm outputs
  • Modbus RTU
  • Rugged stainless steel sensor construction
  • Sensor installations options for flow cell, fast loop reservoir, or direct immersion standpipe
  • Advanced sensor wiper design reduces maintenance and calibration periods
  • Industrial wastewater
  • Drinking water
  • Industrial effluents
  • Effluent and influent monitoring
  • Power plants
  • River and surface water
  • Rain over-flow basins
  • Dissolved organics in water